Evidence map›Paper›PMID 40800327›Full record

ArticleImaging neuroscience (Cambridge, Mass.)2024

Detection of respiration-induced field modulations in fMRI: A concurrent and navigator-free approach.

Alexander Jaffray, Christian Kames, Michelle Medina, Christina Graf, Adam Clansey, Alexander Rauscher

Abstract read
In one paragraph

Article in Imaging neuroscience (Cambridge, Mass.), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Article
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Alexander JaffrayDepartment of Physics and Astronomy, University of British Columbia, Vancouver, Canada.
Christian KamesDepartment of Physics and Astronomy, University of British Columbia, Vancouver, Canada.
Michelle MedinaDepartment of Physics and Astronomy, University of British Columbia, Vancouver, Canada.
Christina GrafDepartment of Pediatrics, University of British Columbia, Vancouver, Canada.
Adam ClanseyDepartment of Mechanical Engineering, University of British Columbia, Vancouver, Canada.
Alexander RauscherDepartment of Physics and Astronomy, University of British Columbia, Vancouver, Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Functional Magnetic Resonance Imaging (fMRI) is typically acquired using gradient-echo sequences with a long echo time at high temporal resolution. Gradient-echo sequences inherently encode information about the magnetic field in the often discarded image phase. We demonstrate a method for processing the phase of reconstructed fMRI data to isolate temporal fluctuations in the harmonic fields associated with respiration by solving a blind source separation problem. The fMRI-derived field fluctuations are shown to be in strong agreement with breathing belt data acquired during the same scan. This work presents a concurrent, hardware-free measurement of respiration-induced field fluctuations, providing a respiratory regressor for fMRI analysis which is independent of local contrast changes, and with potential applications in image reconstruction and fMRI analysis.

Indexed as

field mappingfMRIoff-resonancephysiological noisequantitative susceptibility mappingrespiratory monitoring

Identifiers

PMID40800327
PMCPMC12224404

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.